A cast of politicians, digital pioneers, activists and Hollywood glitterati will gather in the Swiss ski resort of Davos next week for the annual World Economic Forum, which will take place against mounting fears of a new global crash.

The star turn this year will be actor Leonardo DiCaprio, who will be receiving an award for the work of his eponymous foundation, which focuses on the impact of climate change on wildlife. He will be joined by pop stars Bono and Will.i.am, who will rub shoulders with global leaders such as David Cameron, US secretary of state John Kerry and Canada’s prime minister, Justin Trudeau. Once all the delegates have arrived, they will swell the population of the Alpine town from 11,000 to 30,000.

Among the business figures attending are Jack Ma from China’s online retail giant Alibaba, Carl-Henric Svanberg, the chairman of BP and John Chambers, the boss of internet hardware manufacturer Cisco.

The female delegates include Christine Lagarde, head of the International Monetary Fund and Loretta Lynch, the US attorney general, who has handed down huge financial penalties on major banks since taking office.

Many bankers will be in attendance: Jamie Dimon, the boss of JP Morgan, along with top executives from HSBC, Barclays, Standard Chartered and Lloyds Banking Group. Royal Bank of Scotland does not have any representatives formally listed as participants. Goldman Sachs chief executive Lloyd Blankfein is not attending but there will be a delegation from Goldman led by chief operating officer Gary Cohn.

Sir Martin Sorrell, chief executive of advertising giant WPP and a veteran of Davos, will be attending, one of many UK-based business executives invited. A six-strong team from BT will also be there, led by chairman Sir Mike Rake and chief executive Gavin Patterson.

On the theme of the fourth industrial revolution, representatives from so-called “disrupter” companies such as Uber will be in the ski resort. Archbishop of Canterbury Justin Welby is also turning up, to discuss faith.